Re: [OpenWrt-Devel] [PATCH] replace CONFIG_PREEMPT_NONE with CONFIG_PREEMPT

2011-09-04 Thread Philip Prindeville
On 9/2/11 2:09 PM, Michael Büsch wrote: On Fri, 2 Sep 2011 00:55:54 +0200 Luka Perkov open...@lukaperkov.net wrote: Also in linux-2.6.39.4/kernel/Kconfig.preempt you will see for CONFIG_PREEMPT: Select this if you are building a kernel for a desktop or embedded system with

Re: [OpenWrt-Devel] [PATCH] replace CONFIG_PREEMPT_NONE with CONFIG_PREEMPT

2011-09-04 Thread Michael Büsch
On Sun, 04 Sep 2011 10:11:08 -0700 Philip Prindeville philipp_s...@redfish-solutions.com wrote: And finally, I'm not really convinced that any of the routers/APs that OpenWRT supports have latency requirements in the milliseconds range. I'd rather say throughput matters a _lot_ more than a

Re: [OpenWrt-Devel] [PATCH] replace CONFIG_PREEMPT_NONE with CONFIG_PREEMPT

2011-09-04 Thread Michael Büsch
On Sun, 4 Sep 2011 01:06:02 +0200 Luka Perkov open...@lukaperkov.net wrote: What are you actually trying to fix with enabling preemption? I didn't really get it by reading your mail. Kernel oops that I described. Yeah. And that is completely unacceptable. CONFIG_PREEMPT must be enabled;

Re: [OpenWrt-Devel] [PATCH] replace CONFIG_PREEMPT_NONE with CONFIG_PREEMPT

2011-09-04 Thread Philip Prindeville
On 9/4/11 11:43 AM, Michael Büsch wrote: On Sun, 04 Sep 2011 10:11:08 -0700 Philip Prindeville philipp_s...@redfish-solutions.com wrote: And finally, I'm not really convinced that any of the routers/APs that OpenWRT supports have latency requirements in the milliseconds range. I'd rather say

Re: [OpenWrt-Devel] [PATCH] replace CONFIG_PREEMPT_NONE with CONFIG_PREEMPT

2011-09-04 Thread Luka Perkov
On Sun, Sep 04, 2011 at 08:47:46PM +0200, Michael Büsch wrote: On Sun, 4 Sep 2011 01:06:02 +0200 Luka Perkov open...@lukaperkov.net wrote: What are you actually trying to fix with enabling preemption? I didn't really get it by reading your mail. Kernel oops that I described. Yeah.